LHCb Experiment

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The LHCb experiment at CERN. cern.ch/lhcb-public.

Fit to the m(µµ) distribution using form factors from the HPQCD collaboration for: (top left) negative J/ψ phase, positive ψ(2S) phase; (top right) positive J/ψ phase, positive ψ(2S) phase; (bottom left) negative J/ψ phase, negative ψ(2S) phase; (bottom right) positive J/ψ phase, negative ψ(2S) phase.